Pneumatic And Hydraulic Equipment Page 743

SMOOTH START VALVES TIME DELAY VALVES NORGREN Smooth Start Valves are 2-port/2-position, spring return, normally closed valves. They are used in compressed air systems to retard the rate of downstream pressure buildup at start up. Cylinders and other air operated devices are eased into positions corresponding to initial system pressurization, reducing the possibility of equipment damage and hazards to the user. Application of full downstream pressure can be delayed for as long as 50 seconds, depending on the setting of the adjustable needle valve and downstream air volume. Smooth start valves never shut off completely and must be installed downstream of a directional control valve. NORGREN Time Delay Valves consist of a 0 to 60 second time delay fitted with an A1 air operator and a special bottom cap with IN and OUT ports. They are used to provide delayed actuation or release of valves or other pneumatic devices that do not require large air flows. Port Basic Size Part Size PTF C v Factor No. Price 1/2" 1/4" 2.1 A0015A $326.20 3/8" 3.4 A0015B $172.55 1/2" 5.3 A0015C $228.65 3/4" 6.5 A0015D $223.25 1" 3/4" 10.7 A0015E $384.05 1" 13.5 A0015F $736.60 1-1/4" 16.3 A0015G $391.45 Valve Port C v Factors Part Size In to Out to No. Price Type PTF Out Ports Exhaust Ports Z0002A $305.85 Normally Closed, 1/4" 0.15 0.16 Time Delay on Operate (TDO) Z0002B $305.85 Normally Closed, 1/4" 0.14 0.18 Time Delay on Release (TDR) PROSPECTOR POPPET VALVES 0 TO 60 SECOND TIME DELAYS For Use With Air and Solenoid Operated Poppet Valves Most NORGREN solenoid and air operated poppet valves can be equipped with an adjustable 0 to 60 second time delay. The 0 to 60 second time delay is available in three functional models: (1) Time Delay on Operation (TDO), which delays shifting of the main valve poppet on application of the pilot signal, and releases the poppet immediately upon removal of the signal; (2) Time Delay on Release (TDR), which shifts the main valve poppet immediately upon the application of the pilot signal, and delays release of the poppet on removal of the signal; (3) Time Delay on Operation and Release (TDOR), which delays shifting the main valve poppet in both directions upon the application and removal of the pilot signal. EXAMPLE: D 1 0 3 6 C C 1 N O R G R E N norgren pneumatics JHF Catalog [ Volume 7 ] (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j 743 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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